July 26 1951 Dear Dr. Lederberg: The papers on gynandromorphism are: 1932 Prae-oder Postreduction der Chromasom Die Naturwissenschaften 20:358-362. based on: Goldscmidt, R. and Katsuki, K. Erblichen Gynandromorphismus etc. Bial. Zentrbl. 47: 45 - 54 [ . . . ] 48: 39-42 48:685-699 51: 58-74 The grasshopper[?] work are the papers of Miss Carothers [ . . . ] in Wilsa[?] the Cell. It was a pleasure to meet both of you. Best regards R. Goldschmidt